1 /*
2
3 File: file_lxo.c
4
5 Copyright (C) 2011 Christophe GRENIER <grenier@cgsecurity.org>
6
7 This software is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write the Free Software Foundation, Inc., 51
19 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26 #ifdef HAVE_STRING_H
27 #include <string.h>
28 #endif
29 #include <stdio.h>
30 #include "types.h"
31 #include "common.h"
32 #include "filegen.h"
33
34 static void register_header_check_lxo(file_stat_t *file_stat);
35
36 const file_hint_t file_hint_lxo= {
37 .extension="lxo",
38 .description="lxo/lwo 3d model",
39 .max_filesize=PHOTOREC_MAX_FILE_SIZE,
40 .recover=1,
41 .enable_by_default=1,
42 .register_header_check=®ister_header_check_lxo
43 };
44
45 struct lxo_header
46 {
47 char magic[4];
48 uint32_t size;
49 char type[3];
50 } __attribute__ ((gcc_struct, __packed__));
51
header_check_lxo(const unsigned char * buffer,const unsigned int buffer_size,const unsigned int safe_header_only,const file_recovery_t * file_recovery,file_recovery_t * file_recovery_new)52 static int header_check_lxo(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
53 {
54 const struct lxo_header *header=(const struct lxo_header *)buffer;
55 const uint64_t size=be32(header->size) + 8;
56 if(size < sizeof(struct lxo_header))
57 return 0;
58 if(buffer[8]=='L' && buffer[9]=='X' && buffer[10]=='O')
59 {
60 reset_file_recovery(file_recovery_new);
61 file_recovery_new->extension=file_hint_lxo.extension;
62 file_recovery_new->calculated_file_size=size;
63 file_recovery_new->file_check=&file_check_size;
64 file_recovery_new->data_check=&data_check_size;
65 return 1;
66 }
67 if(buffer[8]=='L' && buffer[9]=='W' && buffer[10]=='O')
68 {
69 reset_file_recovery(file_recovery_new);
70 file_recovery_new->extension="lwo";
71 file_recovery_new->calculated_file_size=size;
72 file_recovery_new->file_check=&file_check_size;
73 file_recovery_new->data_check=&data_check_size;
74 return 1;
75 }
76 return 0;
77 }
78
register_header_check_lxo(file_stat_t * file_stat)79 static void register_header_check_lxo(file_stat_t *file_stat)
80 {
81 static const unsigned char lxo_header[4]= {
82 'F' , 'O' , 'R' , 'M'
83 };
84 register_header_check(0, lxo_header, sizeof(lxo_header), &header_check_lxo, file_stat);
85 }
86